Feeding mechanism for riveting-machines.



No. 648 883. Patented ma I, :900.

a G. L. REENSTIERNA. FEEDING MECHANISM FOR RIVE TING MAEHINES. V(Application filed Nov. 5, 1861. (No Model.) v 3 Sheets-Sheet L\X/ITNESSEi E J i '{NVAENTURIY Patented May"l,' I900 G. L. REENSTIERNA.FEEDING MECHANISM FOR BIVETING MACHINES.

(Application filed Nov. 5, 1897.) (llo'llodaL). 3 Sheets$hget 2.

\ |NVENTEIR= No. 648,883. ,Pa cented May- I, 900.

I G. L. REENSTIERNA. v FEEDING MECHANISM FOR RIVETING MACHINES.

(Application filed. Nov. 5, 1897 v 3 sheetssheet 34.

(No Model.)

INVEN'TEI R:

WEI-N15551: 5:

Max M' UNrrnn STATES PATENT OFFICE.

v (il'tfi'lr \l- L. REECSTIERXA, OF BOSTON, MASSACIlUfili'lTS, ASSIGXORTO THE REVERSIBLE RIVF'L COMPANY, 01" SAME PLACE.

FEEDING MECHANISM FOR RIVETING-MACHINE S.

SPECIFICATION forming part of Letters Patent No. 648,883, dated May 1,19cc. Application filed November 5, 1897. Serial No. 657,551. (Nomodel.)

To (all whom it may concern.-

lie it known that I, GUSTAF L. REENS'll ERNA, of Boston, in thecountyofSuffolk and State .of Massachusetts, have invented certain new anduseful lm provements in Feeding Mechanism for Riveting-Machines, &c., ofwhich the following is a specification.

This invention relates to machines for supplying metallicfasteniugs-sueh as rivets, eyelets, &c.to the articles with which suchfastenings are used and for setting or attaching the fastenings in orupon said articles.

The invention relates particularly to machines of this character whichare operated by the muscular force of the operator instead of beingoperated by power; object to enable the agitating device in thereservoir which contains the metallic fastenings to be rotated step' bystep in one'direction by the action of the mechanism which operates theplunger or setting device of the machine.

The invention further has for its object to enable the said agitatingdevice to be operated independently of the other parts of the machinewhen it is desired to simply'fill the raceway of the machine withmetallic fastenings.

The invention consists in the improvements which I- will now proceed todescribe and claim.

0f the accompanying drawings, forming a part of this specification,Figure 1 represents a side elevation of a riveting-machine embodying myinvention. Fig. 2 represents a front elevation of the upper portion ofthe machine. Fig. 2" represents an enlarged side view of a portion ofthe mechanism shown in Fig. 1. Fig. 2" represents a section on line 22", Fig. 2-". Fig. 3 represents a side view of the res; ervoir and itsagitating device, a portion of the reservoir being broken away and shownin section. Fig. 4 represents a sectional view of the reservoir and itsagitating device and of the step-by-step mechanism-connecting theagitating device with the setter -'operating mechanism. Fig. 5represents a section on line 5 5 of Fig. 4 looking upwardly. Fig. 6 Irepresents a section on line 6 6 of Fig. 3.

The same letters of reference indicate the same" parts inall thefigures.

In the drawings, a represents the supportaudit has for its reservoir anding-standard of a machine for setting rivets or other metallicfast-enings.

It represents a plunger which is adapted to reciprocate in a fixed guidea and is provided 5 5 at its lower end with suitable devices adaptedv tocooperate with a fixed anvil 0, supported by a horn or arm (1, on theframe of the machine.

(1 represents the rivet-reservoir, from which an'inclined raceway (1extends to the setting devices.

As my invention does not relate to the con struction of the settingdevices, I do not herein describe said devices, but remark that the samemay be of any suitable character.

6 represents a treadle pivoted at e to the frame of the machine andsu-itablyconnected to. one end of a 1overf,which' is pivoted at f and isengaged at the other end with the plun- 7o ger b, the connectionsbetween the treadle e and lever f being here shownas comprising arocking lever g, pivoted at g, a rod 7L, connecting one arm ofthe leverg with the treadle e, and a rod 1', connecting the other arm of thelever g with the rear end of the leverf. A springj normally holds thelever g and the parts connected therewith ,in the position shown in Fig.1, the plunger 1) being thus held in its raised position. Whenevertheopera- 8o tor depresses the treadle e, the leverfismoved to depress theplunger Z) and set a rivet, the spring j raising the plunger when thetreadle is released.

It represents a rotary agitating device lo 'cated in" the reservoir (1,said device being here shown as a brush of elongated form adapted toextend substantiallyacross the affixed to a shaft m, which is journaledin 'a fixed bearing m on the bottom of the reservoir and projects belowthe reservoir, as shown in Fig. 4. The reservoir has asuitable-outletpassage, which forms a con- 'tinnation of the passageextending through the raceway-d. The brush is arranged to inove acrossthe passage (1 and force the rivets toward said passage, the arrangementbeing such that the brush passes over without disturbing the rivetswhich have properly ontered the passage and sweeps away from over "toothe passage the rivets which are not properly presented. It is desirablethat the agitator V stepaby-step mechanism connecting the-shaft its Isite direction to raise the plunger 19, the spring t be rotatedindependently by ni'cans of a 'by-st-ep rotation in one direction, thesaid .end with the pulley n and at the other end "thatthe agitatorisretated step ,hy steo in; one

have a rotary movement in one direction only instead of an oscillatingmovement, a continuous movement in one direct-ion being prefer-. ablefor various. reasons known to those familiarwith the operation ofmachines of this character. v I g 1 In carrying out my invention Iprovide a of the agitator with a suitable part, such as the lever f, ofthe plunger-operatingmechanism above described; said step-by-stepmechanism being adapted to impart from the os-. cillating lever f totheagitating device a stepstep-by-stcp mechanism also having provisiensfor permitting the agitatonand its shaft to be rotated by handindependently of the other parts of the machine when it is desired tofill the raceway with rivets.

The step-by-step connecting mechanism is here shown as comprising apulley n, loosely mounted on the agitator-shaft m and connected withsaid shaft by a ratchet 0 and a pawl 1), a flexible strap q, attached atone end to the pulley wand at its other end to the leverj, a portion ofthe strap bein g wound upon the pulley 'n, and a spring r, engaged atone" with a fixed support, such as 'a bearing m, said spring beingadapted to rotate the pulley in the direction indicated by the arrow .1in Figs.2 and 5, and thus wind upon the pulley a portion of the strap q.Thestrap g is"guided by an idle pulley q, mounted on hearings affixed tothe frame of the machine. The ratchet 0 is formed on a sleeve or collar0, at fixed to the shaft m, and the pawl p'is pivoted at p to the lowerflange of the pulley n,

The upward movement of the rear end of the lever f, which takes placewhen the plunger h is being depressed, moves the strap (1 in thedirection indicated by the arrow y in- Figs. 2 and 5,4thus causing thepawl 12 to engage the ratchet 0 and impart a partial rotation to theshaft 'm and agitator 7c, the latter being-moved in the directionindicated byithe arrow ,2 in Fig. 2. When the'lever fmovcs in the oppo-'1- rotates the pulley n in the direction required to take up the slackof the strap (1 and wind a portion of the same .uponth'epulley, the pawl19 being thus caused to slip backwardl y on the ratchet 0. 7 It will beseen, therefore,

direction.- It will also be seenthat the pawn and-ratchet connectionbetween the shaft in and pulley'n enables the shaft and agitator liandwheel m aiiixed to said shaft, so that whenever the operator desires tofill the raceway with rivetshe can do so bysimply rotat- 1 ingtheagitator without operating the setting mechanism. This rotation oftheagitator is accomplished without rendering the stepbystep mechanisminoperative and without d1s nection. between the lever f and plunger 1).

The upper end of the plunger is provided connectingthe-saidstep-by-st'ep mechanism withthe setter-operating device therefrom.

In Figs. 2 and 2 Ishow the preferredconwith circular sockets, in whichare fitted to 1 turn freely two circular pieces 3 s, each of which has aslot extending across its outer face, said pieces projecting fromopposite sides of the plunger '11. The forward end of the lever f hastwo'a-rms .erfinjge'rs f-f which are fitted to sl'ideflengthwise it theslots of the pieces 3 "Itwillbe seen that since the picces'as'canoscillate or turn freely in their sockets in the plunger-b and as thefingers f of the lever f can slide freely lengthwise in the slots in thepieces s s a simple and durahis connection is provided, which convertsthe oscillating motion of the lever f into a rectilinear motion of theplunger b; This connection between the lever f and plunger Zi isdescribed and'claimed inanothcr application for Letters Patent for animprovement in machines for'setting' metallic fastenings filed by meooncurrci'itly'herewith, Serial No. 65mins. a i

Having thus explained the niit-iiieofmyinvention and described one wayofconstructing and using the same, although without having attempted toset forth all the forms in which it may be embodied or all the modes ofits use, I declare that what I claim is- In a machine of the characterspecified, the combination with a reservoir and a setter-opcratingmechanism, including an oscillatory l'eyer, of a rotary agitating devicehaving a shaft; a pulley mounted loosely on said shaft and connectedtherewith by a pawl and ratchet, a flexible strap connecting said pulleyand lever; a spring which normally winds a portion of the strap upon thepulley, and a supplemental hand-wheel on said shaft for retatingitindependently of the strap andleyer.

name to this specification, in the presence two subscribing witnesses,this day of No- In testimony whereof I'have signed fmay

